[PATCH 1/2] test/crypto: add TTL and hop limit decrement cases

[Volodymyr Fialko]

Add test cases to verify TTL and hop limit decrement with lookaside
IPsec offload.

Signed-off-by: Volodymyr Fialko <vfia...@marvell.com>
Acked-by: Anoob Joseph <ano...@marvell.com>
---
 app/test/test_cryptodev.c                | 29 +++++++++++++++++++
 app/test/test_cryptodev_security_ipsec.c | 37 ++++++++++++++++++++++++
 app/test/test_cryptodev_security_ipsec.h |  1 +
 3 files changed, 67 insertions(+)

diff --git a/app/test/test_cryptodev.c b/app/test/test_cryptodev.c
index a63c199964..f6c3cd2b7b 100644
--- a/app/test/test_cryptodev.c
+++ b/app/test/test_cryptodev.c
@@ -9811,6 +9811,27 @@ test_PDCP_PROTO_all(void)
                return TEST_SUCCESS;
 }
 
+static int
+test_ipsec_proto_ipv4_ttl_decrement(const void *data __rte_unused)
+{
+       struct ipsec_test_flags flags = {
+               .dec_ttl_or_hop_limit = true
+       };
+
+       return test_ipsec_proto_all(&flags);
+}
+
+static int
+test_ipsec_proto_ipv6_hop_limit_decrement(const void *data __rte_unused)
+{
+       struct ipsec_test_flags flags = {
+               .ipv6 = true,
+               .dec_ttl_or_hop_limit = true
+       };
+
+       return test_ipsec_proto_all(&flags);
+}
+
 static int
 test_docsis_proto_uplink(const void *data)
 {
@@ -14808,6 +14829,14 @@ static struct unit_test_suite ipsec_proto_testsuite  = 
{
                        "Tunnel header set DF 1 (inner 0)",
                        ut_setup_security, ut_teardown,
                        test_ipsec_proto_set_df_1_inner_0),
+               TEST_CASE_NAMED_ST(
+                       "Tunnel header IPv4 decrement inner TTL",
+                       ut_setup_security, ut_teardown,
+                       test_ipsec_proto_ipv4_ttl_decrement),
+               TEST_CASE_NAMED_ST(
+                       "Tunnel header IPv6 decrement inner hop limit",
+                       ut_setup_security, ut_teardown,
+                       test_ipsec_proto_ipv6_hop_limit_decrement),
                TEST_CASES_END() /**< NULL terminate unit test array */
        }
 };
diff --git a/app/test/test_cryptodev_security_ipsec.c 
b/app/test/test_cryptodev_security_ipsec.c
index 229eadf5de..77e4ee84cb 100644
--- a/app/test/test_cryptodev_security_ipsec.c
+++ b/app/test/test_cryptodev_security_ipsec.c
@@ -432,6 +432,9 @@ test_ipsec_td_prepare(const struct crypto_param *param1,
                if (flags->df == TEST_IPSEC_COPY_DF_INNER_0 ||
                    flags->df == TEST_IPSEC_COPY_DF_INNER_1)
                        td->ipsec_xform.options.copy_df = 1;
+
+               if (flags->dec_ttl_or_hop_limit)
+                       td->ipsec_xform.options.dec_ttl = 1;
        }
 }
 
@@ -639,6 +642,32 @@ test_ipsec_l4_csum_verify(struct rte_mbuf *m)
        return TEST_SUCCESS;
 }
 
+static int
+test_ipsec_ttl_or_hop_decrement_verify(void *received, void *expected)
+{
+       struct rte_ipv4_hdr *iph4_ex, *iph4_re;
+       struct rte_ipv6_hdr *iph6_ex, *iph6_re;
+
+       if (is_ipv4(received) && is_ipv4(expected)) {
+               iph4_ex = expected;
+               iph4_re = received;
+               iph4_ex->time_to_live -= 1;
+               if (iph4_re->time_to_live != iph4_ex->time_to_live)
+                       return TEST_FAILED;
+       } else if (!is_ipv4(received) && !is_ipv4(expected)) {
+               iph6_ex = expected;
+               iph6_re = received;
+               iph6_ex->hop_limits -= 1;
+               if (iph6_re->hop_limits != iph6_ex->hop_limits)
+                       return TEST_FAILED;
+       } else {
+               printf("IP header version miss match\n");
+               return TEST_FAILED;
+       }
+
+       return TEST_SUCCESS;
+}
+
 static int
 test_ipsec_td_verify(struct rte_mbuf *m, const struct ipsec_test_data *td,
                     bool silent, const struct ipsec_test_flags *flags)
@@ -728,6 +757,14 @@ test_ipsec_td_verify(struct rte_mbuf *m, const struct 
ipsec_test_data *td,
 
        memcpy(td_output_text, td->output_text.data + skip, len);
 
+       if ((td->ipsec_xform.direction == RTE_SECURITY_IPSEC_SA_DIR_INGRESS) &&
+                               flags->dec_ttl_or_hop_limit) {
+               if (test_ipsec_ttl_or_hop_decrement_verify(output_text, 
td_output_text)) {
+                       printf("Inner TTL/hop limit decrement test failed\n");
+                       return TEST_FAILED;
+               }
+       }
+
        if (test_ipsec_pkt_update(td_output_text, flags)) {
                printf("Could not update expected vector");
                return TEST_FAILED;
diff --git a/app/test/test_cryptodev_security_ipsec.h 
b/app/test/test_cryptodev_security_ipsec.h
index 12a9b77c55..faf2928846 100644
--- a/app/test/test_cryptodev_security_ipsec.h
+++ b/app/test/test_cryptodev_security_ipsec.h
@@ -74,6 +74,7 @@ struct ipsec_test_flags {
        bool fragment;
        bool stats_success;
        enum df_flags df;
+       bool dec_ttl_or_hop_limit;
 };
 
 struct crypto_param {
-- 
2.25.1